To john a



(No Model.) 2 Sheets-Sheet 1.

J. J. BASKERVILLE.

SUH'OOL DESK AND SEAT.

No. 550,091. Patented N0v.-19, 1.895.-

FIGJ- (No Model.) 2 sheets-sheen 2.

J. J.V BASKERVILLE. SCHOOL DESK AND SEAT.

No. 550,091; Patented Nov. 19, 1895.

UNITED STATES PATENT OEETCE.

JAMES J. BASKERVILLE, OF DULUT-H, MINNESOTA, ASSIGNOR OF ONE-HALF TOJOHN A. WVATTERVORTH, OF SAME PLACE.

SCHOOL DESK AND SEAT.

SPECIFICATION forming part of Letters Patent No. 550,091, dated November19, 1895.

Application filed April 13, 1895. Serial No.545,604. (No model.)

T0 all whom, it puny con/cern:

Be it known that I, JAMES J. BAsKERvILLE, a citizen of the UnitedStates, residing at Duluth, in the county of St. Louis and State ofMinnesota, have invented a new and useful School Desk` and Seat, ofwhich the following is a speciiication.

My invention relates to a school desk and seat, and has for its objectto provide simple and efficient means whereby the same may be adjustedand locked at the desired adjustment to suit pupils of different sizes,and particularly to provide means whereby either the desk or the seatmay be adjusted independently of the other.

Further objects and advantages of the invention will appear in thefollowing description, and the novel features thereof will beparticularly pointed out in the appended claims.

In the drawings, Figure 1 is a perspective view of a school desk andseat, together with a seat designed as the terminalseat of a row, saidparts being constructed in accordance with my invention. Fig. 2 is avertical central section of the connected seat and desk. Fig. 3 is aside view of the same, showing the parts in the positions which theyassume when the desk is to be adjusted. Fig. 4 is a detail view inperspective of one of the back uprights of the seat. Y

Similar numerals of reference indicate corresponding parts in all thefigures of the drawings.

The seat supports or standards 1 are provided with downwardly-divergentlegs 2, terminating in feet 3, which are adapted to be screwed orotherwise fastened to the viioor, said supports or standards beingprovided on their outer sides with vertical cross-sectionallyrectangular grooves 4 for the reception of ribs 5 on the inner surfacesof arms 6, depending from the desk 7. The sides 8 of the desk are ofmetal and are provided at their upper and rear edges withinwardly-extending lugs 9 for engagement by screws for securing the top10 and the back 11 to the frame, and the inner surfaces of said sidesare horizontally grooved for the reception of the lateral edges of theshell 12. The depending arms 6 are provided with abrupt shoulders 13 toengage the upper ends of the standards 1, and thus limit the downwardmovement of the desk, and bolts 1-1 engage horizontal openings near theupper ends of the standards and vertical slots 15 in the arms 6, wherebythe desk may be locked at any desired vertical adjustment.

' The back uprights 16, which are arranged at their rear edges adjacentto the front edges of the depending arms 6, are curved forward at theirlower ends to form rests 17 for the seat 1S, said seat being providedwith cleats 19,A which are pivoted by means of screws 2O to the innersides of the forwardly-curved lower ends of the back uprights.Stationary stoppins 21 project from the inner sides of the back uprightsto engage notches 22 in the rearwardly-projecting portions of the cleats19, and corresponding stop-pins 23 are carried by said cleats in frontof their pivotal points to engage notches 24, formed in the rests 17.The back uprights are provided with depending arms 25, having slots 26for engagement by bolts 27, which extend through suitable openings inthe desk supports or standards 1 in advance of the arms 6, and saiddepending arms 25 are provided on their inner sides with webs 2S, whichfit in vertical grooves 29 in the outer sides of the supports orstandards.

The depending side arms 6 are provided at their front edges with racksor roughened faces 30 and the seat-uprights 16 at their rear edges withcorresponding racks or roughened faces 31, which areadapted to mesh orinterlock with those on the side arms, whereby when the parts areadjusted to the proper height and secured in such position the seat anddesk are mutually supporting and are held from independent displacement.The means '1 for holding these racks or roughened faces in engagementconsist of bolts 32, which extend horizontally through the back uprightsand engage vertical slots 33 in the side arms 6, said slots beingaccessible through openings 34, formed in said arms to provide for theapplication and adjustment of the nuts 35.

In the terminal seat 36 (showninFig. 1)

the only difference in construction 'fromthat above described consistsin the provision' of the back uprights' 37 with duplicate'-clepen'clingarms 38 and 39," which are slotted and are IOO held in place by meanssimilar to those above described. In this case the seat does not dependupon a contiguous desk construction for support, and hence it isnecessary to provide it, as described, with front and rear dependingarms.

From the above description it will be seen that when the parts areadjusted to the desired position and are locked in place the desk andseat are mutually supporting, particularly with regard to front and rearstrain, the interlocking or engaging racks or roughened faces serving toprevent independent or relative vertical movement of the parts.

lVhen it is desired to adjust the device to suit a pupil of a givenheight, the desk and seat maybe adjusted together after loosening thebolts li and 27; but in addition to this either the desk or the seat maybe adjusted independently of the other in order to vary the intervalbetween the planes of the seat and desktop.

When it is desired to adjust the desk, the bolts l-t are loosened andthe nuts 535, which on gage the bolts 32, are unscrewed suiiiciently toallow the desk to fall to the rear slightly, a-nd thereby disengage theracks or faces 30 and 3l. The desk may then be raised or lowered tothedesired height, after which the tightening of the nuts will lock thesame in place, and the subscquen t tightening of the bolts 1t willfinally lock the members ,and prevent vibration in use. In the same waythe seatmay be adjusted independently oi' the desk, and in order thateither the desk or the seat may be raised a given distance I preferablyprovide the depending arms thereof with scales arranged contiguous tothe slots in said arms, said scales being marked toV indicate inches andfractions thereof.

Various changes in the form, proportion, and the minor details ofconstruction maybe resorted to without departing from the spirit orsacrificing any of the advantages of this invention.

Having described my invention, what I claim isl. In a school desk, thecombination with fixed supports or standards, ol a seat and a deskmounted for independent vertical ad' justment upon the supports orstamlards, independent means for locking them in their adj ustedpositions, interlocking faces carried, respectively, bythe seat and deskand adapted to be disengaged when the locking means for one of saidmembers are loosened to allow said member to be adjusted, andzuljnstable means for holding said faces inv engagement to insure mutualsupportof thcmembers, substantially as specified.

2. The combination with fixed supports or standards, of a seat and adesk provided with depending slotted arms having ribs fitting to slidein grooves in the supports or standards, bolts for securing said arms atthe desired. vertical adjustment, interlocking racks carriedrespectively by the seat and desk, and bolts engaging contiguous membersof the seat and desk to hold said racks in engagement, substantially asspecified.

3. lhe combination with iixed supports or standards, oi a desk havingdepending side arms mounted for vertical adjustment upon the supports orstandards, bolts engaging vertical. slots in said arms to secure them atthe desired adjustment, a seat having back uprights provided withdepending slotted arms mounted for vertical adjustment upon the supportsor standards, bolts for engaging the slots in said arms to secure thesame at the desired vertical adjustment, racks carried respectively bythe depending arms of the desk and the back uprights of the seat andadapted to interlock to provide mutual support for the desk and seat,and bolts secured in the back uprights extending through vertical slotsin the side arms of the desk, and fitted with nuts, said nuts beingaccessible through openings formed inv the side arms contiguous to theslots through which said bolts project, substantially as specified.

In testimony that I claim. the foregoin as my own I havehcreto affixedmy signature in the presence ot two witnesses.

JAMES J. ISASKERVILLE.

Witnesses:

T. T. lIUDsoN, B. J. CAMPBELL.

